package com.gzsxy.JUC.add;

import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;

public class CyclicBarrierDemo {

    public static void main(String[] args) {

        //集齐7颗龙珠
        //召唤龙珠线程

        CyclicBarrier cyclicBarrier = new CyclicBarrier(7, () -> {
            System.out.println("召唤神龙成功!");
        });

        for (int i = 1; i <= 7; i++) {
            final int temp = i;
            //lambda 能操作到 i 吗
            new Thread(() -> {
                System.out.println(Thread.currentThread().getName() + "收集了" + temp + "个龙珠");
                try {
                    cyclicBarrier.await();  //等待等待7就会执行它的方法
                } catch (InterruptedException e) {
                    e.printStackTrace();
                } catch (BrokenBarrierException e) {
                    e.printStackTrace();
                }

            }).start();


        }


    }
}
